HIGH
CVE-2005-0173
NVD-CWE-OtherPublished: May 2, 2005· Updated: Jun 16, 2026
7.5
CVSS v3.1
Official Description
squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass username-based Access Control Lists (ACLs) via a username with a space at the beginning or end, which is ignored by the LDAP server.
Technical Analysis
CVE-2005-0173 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected Vendors & Products
squid1 product(s)
squid
Source: NVD CPE · 38 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (28)
→
http://www.debian.org/security/2005/dsa-667Patch · Vendor Advisory
→
http://www.kb.cert.org/vuls/id/924198Patch · Third Party Advisory · US Government Resource
→
http://www.novell.com/linux/security/advisories/2005_06_squid.htmlPatch · Vendor Advisory
→
http://www.redhat.com/support/errata/RHSA-2005-060.htmlPatch · Vendor Advisory
→
http://www.redhat.com/support/errata/RHSA-2005-061.htmlPatch · Vendor Advisory
Quick Facts
CVE IDCVE-2005-0173
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedMay 2, 2005
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2005-0173 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.